Sorry to put this on the body of the post but MY TIME HAS COME!
Anything by KM Shea (I recommend starting with her Magiford or Timeless Fairy Tale series, if you want something big, or her King Arthurs or Elves of Lessa if you want something smaller. Also, her rgp lit under AM Sohma is great)
Kyle Robert Shultz's Afterverse books. Best of the best. 10/10. Highly recommended if you want chaos and heart
Kate Stradling if you want "one-shot" stories but in novel format. She does mostly fantasy but her Altair books are dystopian but…in the light sense, if that's anything to you?
Celeste Baxendell if you want something that'll rip your heart to shreds but still give a happy ending
Tales of Goldstone Wood for some hauntingly beautiful Christian fantasy (in my opinion, the first book is sliiiightly the weakest but still worth a read)
Blades of Acktar for non-magical but not of this world Christian fantasy. So good. This author KNOWS what she's talking about, isn't afraid to namedrop God/Jesus, but never makes it preachy
Beyond the Tales (same author as above, Tricia Mingerink) but Christian allegorical fractured fairy tales with Native American inspired kingdoms
Tara Grayce is Mingerink's alt who writes more general fantasy. Still clean and so fun
Okay, sue me but I like Paul McCusker and Chuck Black. The former wrote the Passages series, and it's probably been over a decade since I've read them...but they're basically bible stories set in another world. Chuck Black has…questionable theology to me (a bit too…pro America, I guess?) but his Knights books have interesting symbolism that compels me
Gail Carson Levine and Jessica Day George are two awesome fractured fairy tale and fantasy writers. Big recommend
T. Kingfisher has some amazing books, but I've only read two (Wizard's Guide to Defensive Baking and The Seventh Bride)
Where the Mountain Meets the Moon (Grace Lin) is a really love tale in a Chinese setting that has a lovely mythological feel to it, diving on stories and such
WR Gingell's books are ALWAYS fun (Lady of Dreams series and City Between will always be my favorites of hers)
The Ascendance trilogy by Jennifer A. Nielsen has some amazing twisty fantasy political drama but made to be palatable
AG Marshall has great fairy tale retellings that are just fun to read. Her characters are chaotic and it's so much fun
I'm very fond of Allison Tebo's books. Shorter novellas, for the most part and also fractured fairy tales (can you see a thread?)
Melanie Cellier has fun fractured fairy tales and fantasies. For me, they can be hit or miss but they're all generally nicely written
Sarah K. Wilson has so many fantasies. I've only really read her Dragon school books and they're all SO incredible (bonus points for the protagonist who uses a cane)
Britain Kalai Soderquist is also a fairy tale writer. Her two books I've read, though, operate in a regency world and take the epistolary form. Basically two women living two fairy tales writing to each other the chaos they're experiencing
Arielle Baily has a fun novel called the Icarus Aftermath which is a sci-fi and Greek mythology blend (I say fun but it's also devastating)
Kendra Merritt also has an amazing series of disabled fairy tales and a dnd-inspired book series (under KM Merritt). Heads up for lgbtq implications since I know that's not for some people
On that note, I'd also recommend Legends and Lattes but (again) lgbt pairing
Patricia C Wrede's Enchanted Forest Chronicles
CB Cook has a really fun superhero series following twins; a little too light sometimes for me but still really fun
I recommend anything by Alydia Rackham, period. If you want fantasy, Baldur's Tears or her fairy tale books are incredible. If you want something shorter, the sherlock-adjacent Mute of Pendywick Place books are a delight
Intisar Kanani, again fairy tales, is amazing
I love Wingfeather Saga. It was one of my obsessions. I am ALWAYS a fan of humor that can be spun into depth
Finley Aaron - I love her fairy tales and would have started on her dragon books, except I think she stopped publishing
James Riley's books are a riot. The ones I read were his fairy-tale based ones which are amazing! Chaotic gremlin duo who should not be trusted but somehow are the most qualified for the job
Suzanne Collins' Underland Chronicles will always be a favorite of mine (ironically, I've only read one of her Hunger Games books)
Also highly recommend George MacDonald. Light Princess, Princess and the Goblin, and some of his short stories are a great place to start.
Other authors I recommend/have heard good things about that are clean: Kirsten Fichter, Deborah Grace White, Camille Peters, Kenley Davidson, Patrick W Carr, Shannon Hale, SD Smith, HL Burke, Diana Wynne Jones, Lea Doue, Christopher Healy, I don't know anymore
Actually, in general, I recommend looking at the goodreads pages of authors you like and see what they've read, too. Some of them leave reviews and the clean-writers author indie group is a web with easily followable threads. I've also found good authors by looking at general reviews and seeing authors they're compared to.
Anyway, excuse the dump of words, OP! But I wish you luck reading!